/*
* Copyright (c) 2016, Mellanox Technologies. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <generated/utsrelease.h>
#include <linux/mlx5/fs.h>
#include <net/switchdev.h>
#include <net/pkt_cls.h>
#include <net/act_api.h>
#include <net/devlink.h>
#include <net/ipv6_stubs.h>
#include "eswitch.h"
#include "en.h"
#include "en_rep.h"
#include "en/txrx.h"
#include "en_tc.h"
#include "en/rep/tc.h"
#include "en/rep/neigh.h"
#include "fs_core.h"
#include "lib/mlx5.h"
#define CREATE_TRACE_POINTS
#include "diag/en_rep_tracepoint.h"
#define MLX5E_REP_PARAMS_DEF_LOG_SQ_SIZE \
max(0x7, MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE)
#define MLX5E_REP_PARAMS_DEF_NUM_CHANNELS 1
static const char mlx5e_rep_driver_name[] = "mlx5e_rep";
static void mlx5e_rep_get_drvinfo(struct net_device *dev,
struct ethtool_drvinfo *drvinfo)
{
struct mlx5e_priv *priv = netdev_priv(dev);
struct mlx5_core_dev *mdev = priv->mdev;
strlcpy(drvinfo->driver, mlx5e_rep_driver_name,
sizeof(drvinfo->driver));
strlcpy(drvinfo->version, UTS_RELEASE, sizeof(drvinfo->version));
snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
"%d.%d.%04d (%.16s)",
fw_rev_maj(mdev), fw_rev_min(mdev),
fw_rev_sub(mdev), mdev->board_id);
}
static void mlx5e_uplink_rep_get_drvinfo(struct net_device *dev,
struct ethtool_drvinfo *drvinfo)
{
struct mlx5e_priv *priv = netdev_priv(dev);
mlx5e_rep_get_drvinfo(dev, drvinfo);
strlcpy(drvinfo->bus_info, pci_name(priv->mdev->pdev),
sizeof(drvinfo->bus_info));
}
static const struct counter_desc sw_rep_stats_desc[] = {
{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_packets) },
{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_bytes) },
{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, tx_packets) },
{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, tx_bytes) },
};
struct vport_stats {
u64 vport_rx_packets;
u64 vport_tx_packets;
u64 vport_rx_bytes;
u64 vport_tx_bytes;
};
static const struct counter_desc vport_rep_stats_desc[] = {
{ MLX5E_DECLARE_STAT(struct vport_stats, vport_rx_packets) },
{ MLX5E_DECLARE_STAT(struct vport_stats, vport_rx_bytes) },
{ MLX5E_DECLARE_STAT(struct vport_stats, vport_tx_packets) },
{ MLX5E_DECLARE_STAT(struct vport_stats, vport_tx_bytes) },
};
#define NUM_VPORT_REP_SW_COUNTERS ARRAY_SIZE(sw_rep_stats_desc)
#define NUM_VPORT_REP_HW_COUNTERS ARRAY_SIZE(vport_rep_stats_desc)
static MLX5E_DECLARE_STATS_GRP_OP_NUM_STATS(sw_rep)
{
return NUM_VPORT_REP_SW_COUNTERS;
}
static MLX5E_DECLARE_STATS_GRP_OP_FILL_STRS(sw_rep)
{
int i;
for (i = 0; i < NUM_VPORT_REP_SW_COUNTERS; i++)
strcpy(data + (idx++) * ETH_GSTRING_LEN,
sw_rep_stats_desc[i].format);
return idx;
}
static MLX5E_DECLARE_STATS_GRP_OP_FILL_STATS(sw_rep)
{
int i;
for (i = 0; i < NUM_VPORT_REP_SW_COUNTERS; i++)
data[idx++] = MLX5E_READ_CTR64_CPU(&priv->stats.sw,
sw_rep_stats_desc, i);
return idx;
}
static MLX5E_DECLARE_STATS_GRP_OP_UPDATE_STATS(sw_rep)
{
struct mlx5e_sw_stats *s = &priv->stats.sw;
struct rtnl_link_stats64 stats64 = {};
memset(s, 0, sizeof(*s));
mlx5e_fold_sw_stats64(priv, &stats64);
s->rx_packets = stats64.rx_packets;
s->rx_bytes = stats64.rx_bytes;
s->tx_packets = stats64.tx_packets;
s->tx_bytes = stats64.tx_bytes;
s->tx_queue_dropped = stats64.tx_dropped;
}
static MLX5E_DECLARE_STATS_GRP_OP_NUM_STATS(vport_rep)
{
return NUM_VPORT_REP_HW_COUNTERS;
}
static MLX5E_DECLARE_STATS_GRP_OP_FILL_STRS(vport_rep)
{
int i;
for (i = 0; i < NUM_VPORT_REP_HW_COUNTERS; i++)
strcpy(data + (idx++) * ETH_GSTRING_LEN, vport_rep_stats_desc[i].format);
return idx;
}
static MLX5E_DECLARE_STATS_GRP_OP_FILL_STATS(vport_rep)
{
int i;
for (i = 0; i < NUM_VPORT_REP_HW_COUNTERS; i++)
data[idx++] = MLX5E_READ_CTR64_CPU(&priv->stats.vf_vport,
vport_rep_stats_desc, i);
return idx;
}
static MLX5E_DECLARE_STATS_GRP_OP_UPDATE_STATS(vport_rep)
{
struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
struct mlx5e_rep_priv *rpriv = priv->ppriv;
struct mlx5_eswitch_rep *rep = rpriv->rep;
struct rtnl_link_stats64 *vport_stats;
struct ifla_vf_stats vf_stats;
int err;
err = mlx5_eswitch_get_vport_stats(esw, rep->vport, &vf_stats);
if (err) {
netdev_warn(priv->netdev, "vport %d error %d reading stats\n",
rep->vport, err);
return;
}
vport_stats = &priv->stats.vf_vport;
/* flip tx/rx as we are reporting the counters for the switch vport */
vport_stats->rx_packets = vf_stats.tx_packets;
vport_stats->rx_bytes = vf_stats.tx_bytes;
vport_stats->tx_packets = vf_stats.rx_packets;
vport_stats->tx_bytes = vf_stats.rx_bytes;
}
static void mlx5e_rep_get_strings(struct net_device *dev,
u32 stringset, uint8_t *data)
{
struct mlx5e_priv *priv = netdev_priv(dev);
switch (stringset) {
case ETH_SS_STATS:
mlx5e_stats_fill_strings(priv, data);
break;
}
}
static void mlx5e_rep_get_ethtool_stats(struct net_device *dev,
struct ethtool_stats *stats, u64 *data)
{
struct mlx5e_priv *priv = netdev_priv(dev);
mlx5e_ethtool_get_ethtool_stats(priv, stats, data);
}
static int mlx5e_rep_get_sset_count(struct net_device *dev, int sset)
{
struct mlx5e_priv *priv = netdev_priv(dev);
switch (sset) {
case ETH_SS_STATS:
return mlx5e_stats_total_num(priv);
default:
return -EOPNOTSUPP;
}
}
static void mlx5e_rep_get_ringparam(struct net_device *dev,
struct ethtool_ringparam *param)
{
struct mlx5e_priv *priv = netdev_priv(dev);
mlx5e_ethtool_get_ringparam(priv, param);
}
static int mlx5e_rep_set_ringparam(struct net_device *dev,
struct ethtool_ringparam *param)
{
struct mlx5e_priv *priv = netdev_priv(dev);
return mlx5e_ethtool_set_ringparam(priv, param);
}
static void mlx5e_rep_get_channels(struct net_device *dev,
struct ethtool_channels *ch)
{
struct mlx5e_priv *priv = netdev_priv(dev);
mlx5e_ethtool_get_channels(priv, ch);
}
static int mlx5e_rep_set_channels(struct net_device *dev,
struct ethtool_channels *ch)
{
struct mlx5e_priv *priv = netdev_priv(dev);
return mlx5e_ethtool_set_channels(priv, ch);
}
static int mlx5e_rep_get_coalesce(struct net_device *netdev,
struct ethtool_coalesce *coal)
{
struct mlx5e_priv *priv = netdev_priv(netdev);
return mlx5e_ethtool_get_coalesce(priv, coal);
}
static int mlx5e_rep_set_coalesce(struct net_device *netdev,
struct ethtool_coalesce *coal)
{
struct mlx5e_priv *priv = netdev_priv(netdev);
return mlx5e_ethtool_set_coalesce(priv, coal);
}
static u32 mlx5e_rep_get_rxfh_key_size(struct net_device *netdev)
{
struct mlx5e_priv *priv = netdev_priv(netdev);
return mlx5e_ethtool_get_rxfh_key_size(priv);
}
static u32 mlx5e_rep_get_rxfh_indir_size(struct net_device *netdev)
{
struct mlx5e_priv *priv = netdev_priv(netdev);
return mlx5e_ethtool_get_rxfh_indir_size(priv);
}
static void mlx5e_uplink_rep_get_pause_stats(struct net_device *netdev,
struct ethtool_pause_stats *stats)
{
struct mlx5e_priv *priv = netdev_priv(netdev);
mlx5e_stats_pause_get(priv, stats);
}
static void mlx5e_uplink_rep_get_pauseparam(struct net_device *netdev,
struct ethtool_pauseparam *pauseparam)
{
struct mlx5e_priv *priv = netdev_priv(netdev);
mlx5e_ethtool_get_pauseparam(priv, pauseparam);
}
static int mlx5e_uplink_rep_set_pauseparam(struct net_device *netdev,
struct ethtool_pauseparam *pauseparam)
{
struct mlx5e_priv *priv = netdev_priv(netdev);
return mlx5e_ethtool_set_pauseparam(priv, pauseparam);
}
static int mlx5e_uplink_rep_get_link_ksettings(struct net_device *netdev,
struct ethtool_link_ksettings *link_ksettings)
{
struct mlx5e_priv *priv = netdev_priv(netdev);
return mlx5e_ethtool_get_link_ksettings(priv, link_ksettings);
}
static int mlx5e_uplink_rep_set_link_ksettings(struct net_device *netdev,
const struct ethtool_link_ksettings *link_ksettings)
{
struct mlx5e_priv *priv = netdev_priv(netdev);
return mlx5e_ethtool_set_link_ksettings(priv, link_ksettings);
}
static const struct ethtool_ops mlx5e_rep_ethtool_ops = {
.supported_coalesce_params = ETHTOOL_COALESCE_USECS |
ETHTOOL_COALESCE_MAX_FRAMES |
ETHTOOL_COALESCE_USE_ADAPTIVE,
.get_drvinfo = mlx5e_rep_get_drvinfo,
.get_link = ethtool_op_get_link,
.get_strings = mlx5e_rep_get_strings,
.get_sset_count = mlx5e_rep_get_sset_count,
.get_ethtool_stats = mlx5e_rep_get_ethtool_stats,
.get_ringparam = mlx5e_rep_get_ringparam,
.set_ringparam = mlx5e_rep_set_ringparam,
.get_channels = mlx5e_rep_get_channels,
.set_channels = mlx5e_rep_set_channels,
.get_coalesce = mlx5e_rep_get_coalesce,
.set_coalesce = mlx5e_rep_set_coalesce,
.get_rxfh_key_size = mlx5e_rep_get_rxfh_key_size,
.get_rxfh_indir_size = mlx5e_rep_get_rxfh_indir_size,
};
static const struct ethtool_ops mlx5e_uplink_rep_ethtool_ops = {
.supported_coalesce_params = ETHTOOL_COALESCE_USECS |
ETHTOOL_COALESCE_MAX_FRAMES |
ETHTOOL_COALESCE_USE_ADAPTIVE,
.get_drvinfo = mlx5e_uplink_rep_get_drvinfo,
.get_link = ethtool_op_get_link,
.get_strings = mlx5e_rep_get_strings,
.get_sset_count = mlx5e_rep_get_sset_count,
.get_ethtool_stats = mlx5e_rep_get_ethtool_stats,
.get_ringparam = mlx5e_rep_get_ringparam,
.set_ringparam = mlx5e_rep_set_ringparam,
.get_channels = mlx5e_rep_get_channels,
.set_channels = mlx5e_rep_set_channels,
.get_coalesce = mlx5e_rep_get_coalesce,
.set_coalesce = mlx5e_rep_set_coalesce,
.get_link_ksettings = mlx5e_uplink_rep_get_link_ksettings,
.set_link_ksettings = mlx5e_uplink_rep_set_link_ksettings,
.get_rxfh_key_size = mlx5e_rep_get_rxfh_key_size,
.get_rxfh_indir_size = mlx5e_rep_get_rxfh_indir_size,
.get_rxfh = mlx5e_get_rxfh,
.set_rxfh = mlx5e_set_rxfh,
.get_rxnfc = mlx5e_get_rxnfc,
.set_rxnfc = mlx5e_set_rxnfc,
.get_pause_stats = mlx5e_uplink_rep_get_pause_stats,
.get_pauseparam = mlx5e_uplink_rep_get_pauseparam,
.set_pauseparam = mlx5e_uplink_rep_set_pauseparam,
};
static void mlx5e_sqs2vport_stop(struct mlx5_eswitch *esw,
struct mlx5_eswitch_rep *rep)
{
struct mlx5e_rep_sq *rep_sq, *tmp;
struct mlx5e_rep_priv *rpriv;
if (esw->mode != MLX5_ESWITCH_OFFLOADS)
return;
rpriv = mlx5e_rep_to_rep_priv(rep);
list_for_each_entry_safe(rep_sq, tmp, &rpriv->vport_sqs_list, list) {
mlx5_eswitch_del_send_to_vport_rule(rep_sq->send_to_vport_rule);
list_del(&rep_sq->list);
kfree(rep_sq);
}
}
static int mlx5e_sqs2vport_start(struct mlx5_eswitch *esw,
struct mlx5_eswitch_rep *rep,
u32 *sqns_array, int sqns_num)
{
struct mlx5_flow_handle *flow_rule;
struct mlx5e_rep_priv *rpriv;
struct mlx5e_rep_sq *rep_sq;
int err;
int i;
if (esw->mode != MLX5_ESWITCH_OFFLOADS)
return 0;
rpriv = mlx5e_rep_to_rep_priv(rep);
for (i = 0; i < sqns_num; i++) {
rep_sq = kzalloc(sizeof(*rep_sq), GFP_KERNEL);
if (!rep_sq) {
err = -ENOMEM;
goto out_err;
}
/* Add re-inject rule to the PF/representor sqs */
flow_rule = mlx5_eswitch_add_send_to_vport_rule(esw,
rep->vport,
sqns_array[i]);
if (IS_ERR(flow_rule)) {
err = PTR_ERR(flow_rule);
kfree(rep_sq);
goto out_err;
}
rep_sq->send_to_vport_rule = flow_rule;
list_add(&rep_sq->list, &rpriv->vport_sqs_list);
}
return 0;
out_err:
mlx5e_sqs2vport_stop(esw, rep);
return err;
}
int mlx5e_add_sqs_fwd_rules(struct mlx5e_priv *priv)
{
struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
struct mlx5e_rep_priv *rpriv = priv->ppriv;
struct mlx5_eswitch_rep *rep = rpriv->rep;
struct mlx5e_channel *c;
int n, tc, num_sqs = 0;
int err = -ENOMEM;
u32 *sqs;
sqs = kcalloc(priv->channels.num * priv->channels.params.num_tc, sizeof(*sqs), GFP_KERNEL);
if (!sqs)
goto out;
for (n = 0; n < priv->channels.num; n++) {
c = priv->channels.c[n];
for (tc = 0; tc < c->num_tc; tc++)
sqs[num_sqs++] = c->sq[tc].sqn;
}
err = mlx5e_sqs2vport_start(esw, rep, sqs, num_sqs);
kfree(sqs);
out:
if (err)
netdev_warn(priv->netdev, "Failed to add SQs FWD rules %d\n", err);
return err;
}
void mlx5e_remove_sqs_fwd_rules(struct mlx5e_priv *priv)
{
struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
struct mlx5e_rep_priv *rpriv = priv->ppriv;
struct mlx5_eswitch_rep *rep = rpriv->rep;
mlx5e_sqs2vport_stop(esw, rep);
}
static int mlx5e_rep_open(struct net_device *dev)
{
struct mlx5e_priv *priv = netdev_priv(dev);
struct mlx5e_rep_priv *rpriv = priv->ppriv;
struct mlx5_eswitch_rep *rep = rpriv->rep;
int err;
mutex_lock(&priv->state_lock);
err = mlx5e_open_locked(dev);
if (err)
goto unlock;
if (!mlx5_modify_vport_admin_state(priv->mdev,
MLX5_VPORT_STATE_OP_MOD_ESW_VPORT,
rep->vport, 1,
MLX5_VPORT_ADMIN_STATE_UP))
netif_carrier_on(dev);
unlock:
mutex_unlock(&priv->state_lock);
return err;
}
static int mlx5e_rep_close(struct net_device *dev)
{
struct mlx5e_priv *priv = netdev_priv(dev);
struct mlx5e_rep_priv *rpriv = priv->ppriv;
struct mlx5_eswitch_rep *rep = rpriv->rep;
int ret;
mutex_lock(&priv->state_lock);
mlx5_modify_vport_admin_state(priv->mdev,
MLX5_VPORT_STATE_OP_MOD_ESW_VPORT,
rep->vport, 1,
MLX5_VPORT_ADMIN_STATE_DOWN);
ret = mlx5e_close_locked(dev);
mutex_unlock(&priv->state_lock);
return ret;
}
bool mlx5e_is_uplink_rep(struct mlx5e_priv *priv)
{
struct mlx5e_rep_priv *rpriv = priv->ppriv;
struct mlx5_eswitch_rep *rep;
if (!MLX5_ESWITCH_MANAGER(priv->mdev))
return false;
if (!rpriv) /* non vport rep mlx5e instances don't use this field */
return false;
rep = rpriv->rep;
return (rep->vport == MLX5_VPORT_UPLINK);
}
static bool mlx5e_rep_has_offload_stats(const struct net_device *dev, int attr_id)
{
switch (attr_id) {
case IFLA_OFFLOAD_XSTATS_CPU_HIT:
return true;
}
return false;
}
static int
mlx5e_get_sw_stats64(const struct net_device *dev,
struct rtnl_link_stats64 *stats)
{
struct mlx5e_priv *priv = netdev_priv(dev);
mlx5e_fold_sw_stats64(priv, stats);
return 0;
}
static int mlx5e_rep_get_offload_stats(int attr_id, const struct net_device *dev,
void *sp)
{
switch (attr_id) {
case IFLA_OFFLOAD_XSTATS_CPU_HIT:
return mlx5e_get_sw_stats64(dev, sp);
}
return -EINVAL;
}
static void
mlx5e_rep_get_stats(struct net_device *dev, struct rtnl_link_stats64 *stats)
{
struct mlx5e_priv *priv = netdev_priv(dev);
/* update HW stats in background for next time */
mlx5e_queue_update_stats(priv);
memcpy(stats, &priv->stats.vf_vport, sizeof(*stats));
}
static int mlx5e_rep_change_mtu(struct net_device *netdev, int new_mtu)
{
return mlx5e_change_mtu(netdev, new_mtu, NULL);
}
static int mlx5e_uplink_rep_change_mtu(struct net_device *netdev, int new_mtu)
{
return mlx5e_change_mtu(netdev, new_mtu, mlx5e_set_dev_port_mtu_ctx);
}
static int mlx5e_uplink_rep_set_mac(struct net_device *netdev, void *addr)
{
struct sockaddr *saddr = addr;
if (!is_valid_ether_addr(saddr->sa_data))
return -EADDRNOTAVAIL;
ether_addr_copy(netdev->dev_addr, saddr->sa_data);
return 0;
}
static int mlx5e_uplink_rep_set_vf_vlan(struct net_device *dev, int vf, u16 vlan, u8 qos,
__be16 vlan_proto)
{
netdev_warn_once(dev, "legacy vf vlan setting isn't supported in switchdev mode\n");
if (vlan != 0)
return -EOPNOTSUPP;
/* allow setting 0-vid for compatibility with libvirt */
return 0;
}
static struct devlink_port *mlx5e_rep_get_devlink_port(struct net_device *netdev)
{
struct mlx5e_priv *priv = netdev_priv(netdev);
struct mlx5e_rep_priv *rpriv = priv->ppriv;
struct mlx5_core_dev *dev = priv->mdev;
return mlx5_esw_offloads_devlink_port(dev->priv.eswitch, rpriv->rep->vport);
}
static int mlx5e_rep_change_carrier(struct net_device *dev, bool new_carrier)
{
struct mlx5e_priv *priv = netdev_priv(dev);
struct mlx5e_rep_priv *rpriv = priv->ppriv;
struct mlx5_eswitch_rep *rep = rpriv->rep;
int err;
if (new_carrier) {
err = mlx5_modify_vport_admin_state(priv->mdev, MLX5_VPORT_STATE_OP_MOD_ESW_VPORT,
rep->vport, 1, MLX5_VPORT_ADMIN_STATE_UP);
if (err)
return err;
netif_carrier_on(dev);
} else {
err = mlx5_modify_vport_admin_state(priv->mdev, MLX5_VPORT_STATE_OP_MOD_ESW_VPORT,
rep->vport, 1, MLX5_VPORT_ADMIN_STATE_DOWN);
if (err)
return err;
netif_carrier_off(dev);
}
return 0;
}
static const struct net_device_ops mlx5e_netdev_ops_rep = {
.ndo_open = mlx5e_rep_open,
.ndo_stop = mlx5e_rep_close,
.ndo_start_xmit = mlx5e_xmit,
.ndo_setup_tc = mlx5e_rep_setup_tc,
.ndo_get_devlink_port = mlx5e_rep_get_devlink_port,
.ndo_get_stats64 = mlx5e_rep_get_stats,
.ndo_has_offload_stats = mlx5e_rep_has_offload_stats,
.ndo_get_offload_stats = mlx5e_rep_get_offload_stats,
.ndo_change_mtu = mlx5e_rep_change_mtu,
.ndo_change_carrier = mlx5e_rep_change_carrier,
};
static const struct net_device_ops mlx5e_netdev_ops_uplink_rep = {
.ndo_open = mlx5e_open,
.ndo_stop = mlx5e_close,
.ndo_start_xmit = mlx5e_xmit,
.ndo_set_mac_address = mlx5e_uplink_rep_set_mac,
.ndo_setup_tc = mlx5e_rep_setup_tc,
.ndo_get_devlink_port = mlx5e_rep_get_devlink_port,
.ndo_get_stats64 = mlx5e_get_stats,
.ndo_has_offload_stats = mlx5e_rep_has_offload_stats,
.ndo_get_offload_stats = mlx5e_rep_get_offload_stats,
.ndo_change_mtu = mlx5e_uplink_rep_change_mtu,
.ndo_udp_tunnel_add = udp_tunnel_nic_add_port,
.ndo_udp_tunnel_del = udp_tunnel_nic_del_port,
.ndo_features_check = mlx5e_features_check,
.ndo_set_vf_mac = mlx5e_set_vf_mac,
.ndo_set_vf_rate = mlx5e_set_vf_rate,
.ndo_get_vf_config = mlx5e_get_vf_config,
.ndo_get_vf_stats = mlx5e_get_vf_stats,
.ndo_set_vf_vlan = mlx5e_uplink_rep_set_vf_vlan,
.ndo_set_features = mlx5e_set_features,
};
bool mlx5e_eswitch_uplink_rep(struct net_device *netdev)
{
return netdev->netdev_ops == &mlx5e_netdev_ops_uplink_rep;
}
bool mlx5e_eswitch_vf_rep(struct net_device *netdev)
{
return netdev->netdev_ops == &mlx5e_netdev_ops_rep;
}
static void mlx5e_build_rep_params(struct net_device *netdev)
{
struct mlx5e_priv *priv = netdev_priv(netdev);
struct mlx5e_rep_priv *rpriv = priv->ppriv;
struct mlx5_eswitch_rep *rep = rpriv->rep;
struct mlx5_core_dev *mdev = priv->mdev;
struct mlx5e_params *params;
u8 cq_period_mode = MLX5_CAP_GEN(mdev, cq_period_start_from_cqe) ?
MLX5_CQ_PERIOD_MODE_START_FROM_CQE :
MLX5_CQ_PERIOD_MODE_START_FROM_EQE;
params = &priv->channels.params;
params->hard_mtu = MLX5E_ETH_HARD_MTU;
params->sw_mtu = netdev->mtu;
/* SQ */
if (rep->vport == MLX5_VPORT_UPLINK)
params->log_sq_size = MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE;
else
params->log_sq_size = MLX5E_REP_PARAMS_DEF_LOG_SQ_SIZE;
/* RQ */
mlx5e_build_rq_params(mdev, params);
/* CQ moderation params */
params->rx_dim_enabled = MLX5_CAP_GEN(mdev, cq_moderation);
mlx5e_set_rx_cq_mode_params(params, cq_period_mode);
params->num_tc = 1;
params->tunneled_offload_en = false;
mlx5_query_min_inline(mdev, ¶ms->tx_min_inline_mode);
/* RSS */
mlx5e_build_rss_params(&priv->rss_params, params->num_channels);
}
static void mlx5e_build_rep_netdev(struct net_device *netdev)
{
struct mlx5e_priv *priv = netdev_priv(netdev);
struct mlx5e_rep_priv *rpriv = priv->ppriv;
struct mlx5_eswitch_rep *rep = rpriv->rep;
struct mlx5_core_dev *mdev = priv->mdev;
SET_NETDEV_DEV(netdev, mdev->device);
if (rep->vport == MLX5_VPORT_UPLINK) {
netdev->netdev_ops = &mlx5e_netdev_ops_uplink_rep;
/* we want a persistent mac for the uplink rep */
mlx5_query_mac_address(mdev, netdev->dev_addr);
netdev->ethtool_ops = &mlx5e_uplink_rep_ethtool_ops;
mlx5e_vxlan_set_netdev_info(priv);
mlx5e_dcbnl_build_rep_netdev(netdev);
} else {
netdev->netdev_ops = &mlx5e_netdev_ops_rep;
eth_hw_addr_random(netdev);
netdev->ethtool_ops = &mlx5e_rep_ethtool_ops;
}
netdev->watchdog_timeo = 15 * HZ;
netdev->features |= NETIF_F_NETNS_LOCAL;
#if IS_ENABLED(CONFIG_MLX5_CLS_ACT)
netdev->hw_features |= NETIF_F_HW_TC;
#endif
netdev->hw_features |= NETIF_F_SG;
netdev->hw_features |= NETIF_F_IP_CSUM;
netdev->hw_features |= NETIF_F_IPV6_CSUM;
netdev->hw_features |= NETIF_F_GRO;
netdev->hw_features |= NETIF_F_TSO;
netdev->hw_features |= NETIF_F_TSO6;
netdev->hw_features |= NETIF_F_RXCSUM;
if (rep->vport == MLX5_VPORT_UPLINK)
netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX;
else
netdev->features |= NETIF_F_VLAN_CHALLENGED;
netdev->features |= netdev->hw_features;
}
static int mlx5e_init_rep(struct mlx5_core_dev *mdev,
struct net_device *netdev,
const struct mlx5e_profile *profile,
void *ppriv)
{
struct mlx5e_priv *priv = netdev_priv(netdev);
int err;
err = mlx5e_netdev_init(netdev, priv, mdev, profile, ppriv);
if (err)
return err;
priv->channels.params.num_channels = MLX5E_REP_PARAMS_DEF_NUM_CHANNELS;
mlx5e_build_rep_params(netdev);
mlx5e_build_rep_netdev(netdev);
mlx5e_timestamp_init(priv);
return 0;
}
static void mlx5e_cleanup_rep(struct mlx5e_priv *priv)
{
mlx5e_netdev_cleanup(priv->netdev, priv);
}
static int mlx5e_create_rep_ttc_table(struct mlx5e_priv *priv)
{
struct mlx5e_rep_priv *rpriv = priv->ppriv;
struct mlx5_eswitch_rep *rep = rpriv->rep;
struct ttc_params ttc_params = {};
int tt, err;
priv->fs.ns = mlx5_get_flow_namespace(priv->mdev,
MLX5_FLOW_NAMESPACE_KERNEL);
/* The inner_ttc in the ttc params is intentionally not set */
ttc_params.any_tt_tirn = priv->direct_tir[0].tirn;
mlx5e_set_ttc_ft_params(&ttc_params);
if (rep->vport != MLX5_VPORT_UPLINK)
/* To give uplik rep TTC a lower level for chaining from root ft */
ttc_params.ft_attr.level = MLX5E_TTC_FT_LEVEL + 1;
for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++)
ttc_params.indir_tirn[tt] = priv->indir_tir[tt].tirn;
err = mlx5e_create_ttc_table(priv, &ttc_params, &priv->fs.ttc);
if (err) {
netdev_err(priv->netdev, "Failed to create rep ttc table, err=%d\n", err);
return err;
}
return 0;
}
static int mlx5e_create_rep_root_ft(struct mlx5e_priv *priv)
{
struct mlx5e_rep_priv *rpriv = priv->ppriv;
struct mlx5_eswitch_rep *rep = rpriv->rep;
struct mlx5_flow_table_attr ft_attr = {};
struct mlx5_flow_namespace *ns;
int err = 0;
if (rep->vport != MLX5_VPORT_UPLINK) {
/* non uplik reps will skip any bypass tables and go directly to
* their own ttc
*/
rpriv->root_ft = priv->fs.ttc.ft.t;
return 0;
}
/* uplink root ft will be used to auto chain, to ethtool or ttc tables */
ns = mlx5_get_flow_namespace(priv->mdev, MLX5_FLOW_NAMESPACE_OFFLOADS);
if (!ns) {
netdev_err(priv->netdev, "Failed to get reps offloads namespace\n");
return -EOPNOTSUPP;
}
ft_attr.max_fte = 0; /* Empty table, miss rule will always point to next table */
ft_attr.prio = 1;
ft_attr.level = 1;
rpriv->root_ft = mlx5_create_flow_table(ns, &ft_attr);
if (IS_ERR(rpriv->root_ft)) {
err = PTR_ERR(rpriv->root_ft);
rpriv->root_ft = NULL;
}
return err;
}
static void mlx5e_destroy_rep_root_ft(struct mlx5e_priv *priv)
{
struct mlx5e_rep_priv *rpriv = priv->ppriv;
struct mlx5_eswitch_rep *rep = rpriv->rep;
if (rep->vport != MLX5_VPORT_UPLINK)
return;
mlx5_destroy_flow_table(rpriv->root_ft);
}
static int mlx5e_create_rep_vport_rx_rule(struct mlx5e_priv *priv)
{
struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
struct mlx5e_rep_priv *rpriv = priv->ppriv;
struct mlx5_eswitch_rep *rep = rpriv->rep;
struct mlx5_flow_handle *flow_rule;
struct mlx5_flow_destination dest;
dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
dest.ft = rpriv->root_ft;
flow_rule = mlx5_eswitch_create_vport_rx_rule(esw, rep->vport, &dest);
if (IS_ERR(flow_rule))
return PTR_ERR(flow_rule);
rpriv->vport_rx_rule = flow_rule;
return 0;
}
static void rep_vport_rx_rule_destroy(struct mlx5e_priv *priv)
{
struct mlx5e_rep_priv *rpriv = priv->ppriv;
if (!rpriv->vport_rx_rule)
return;
mlx5_del_flow_rules(rpriv->vport_rx_rule);
rpriv->vport_rx_rule = NULL;
}
int mlx5e_rep_bond_update(struct mlx5e_priv *priv, bool cleanup)
{
rep_vport_rx_rule_destroy(priv);
return cleanup ? 0 : mlx5e_create_rep_vport_rx_rule(priv);
}
static int mlx5e_init_rep_rx(struct mlx5e_priv *priv)
{
struct mlx5_core_dev *mdev = priv->mdev;
int err;
mlx5e_init_l2_addr(priv);
err = mlx5e_open_drop_rq(priv, &priv->drop_rq);
if (err) {
mlx5_core_err(mdev, "open drop rq failed, %d\n", err);
return err;
}
err = mlx5e_create_indirect_rqt(priv);
if (err)
goto err_close_drop_rq;
err = mlx5e_create_direct_rqts(priv, priv->direct_tir);
if (err)
goto err_destroy_indirect_rqts;
err = mlx5e_create_indirect_tirs(priv, false);
if (err)
goto err_destroy_direct_rqts;
err = mlx5e_create_direct_tirs(priv, priv->direct_tir);
if (err)
goto err_destroy_indirect_tirs;
err = mlx5e_create_rep_ttc_table(priv);
if (err)
goto err_destroy_direct_tirs;
err = mlx5e_create_rep_root_ft(priv);
if (err)
goto err_destroy_ttc_table;
err = mlx5e_create_rep_vport_rx_rule(priv);
if (err)
goto err_destroy_root_ft;
mlx5e_ethtool_init_steering(priv);
return 0;
err_destroy_root_ft:
mlx5e_destroy_rep_root_ft(priv);
err_destroy_ttc_table:
mlx5e_destroy_ttc_table(priv, &priv->fs.ttc);
err_destroy_direct_tirs:
mlx5e_destroy_direct_tirs(priv, priv->direct_tir);
err_destroy_indirect_tirs:
mlx5e_destroy_indirect_tirs(priv);
err_destroy_direct_rqts:
mlx5e_destroy_direct_rqts(priv, priv->direct_tir);
err_destroy_indirect_rqts:
mlx5e_destroy_rqt(priv, &priv->indir_rqt);
err_close_drop_rq:
mlx5e_close_drop_rq(&priv->drop_rq);
return err;
}
static void mlx5e_cleanup_rep_rx(struct mlx5e_priv *priv)
{
mlx5e_ethtool_cleanup_steering(priv);
rep_vport_rx_rule_destroy(priv);
mlx5e_destroy_rep_root_ft(priv);
mlx5e_destroy_ttc_table(priv, &priv->fs.ttc);
mlx5e_destroy_direct_tirs(priv, priv->direct_tir);
mlx5e_destroy_indirect_tirs(priv);
mlx5e_destroy_direct_rqts(priv, priv->direct_tir);
mlx5e_destroy_rqt(priv, &priv->indir_rqt);
mlx5e_close_drop_rq(&priv->drop_rq);
}
static int mlx5e_init_ul_rep_rx(struct mlx5e_priv *priv)
{
mlx5e_create_q_counters(priv);
return mlx5e_init_rep_rx(priv);
}
static void mlx5e_cleanup_ul_rep_rx(struct mlx5e_priv *priv)
{
mlx5e_cleanup_rep_rx(priv);
mlx5e_destroy_q_counters(priv);
}
static int mlx5e_init_uplink_rep_tx(struct mlx5e_rep_priv *rpriv)
{
struct mlx5_rep_uplink_priv *uplink_priv;
struct net_device *netdev;
struct mlx5e_priv *priv;
int err;
netdev = rpriv->netdev;
priv = netdev_priv(netdev);
uplink_priv = &rpriv->uplink_priv;
err = mlx5e_rep_tc_init(rpriv);
if (err)
return err;
mlx5_init_port_tun_entropy(&uplink_priv->tun_entropy, priv->mdev);
mlx5e_rep_bond_init(rpriv);
err = mlx5e_rep_tc_netdevice_event_register(rpriv);
if (err) {
mlx5_core_err(priv->mdev, "Failed to register netdev notifier, err: %d\n",
err);
goto err_event_reg;
}
return 0;
err_event_reg:
mlx5e_rep_bond_cleanup(rpriv);
mlx5e_rep_tc_cleanup(rpriv);
return err;
}
static int mlx5e_init_rep_tx(struct mlx5e_priv *priv)
{
struct mlx5e_rep_priv *rpriv = priv->ppriv;
int err;
err = mlx5e_create_tises(priv);
if (err) {
mlx5_core_warn(priv->mdev, "create tises failed, %d\n", err);
return err;
}
if (rpriv->rep->vport == MLX5_VPORT_UPLINK) {
err = mlx5e_init_uplink_rep_tx(rpriv);
if (err)
goto destroy_tises;
}
return 0;
destroy_tises:
mlx5e_destroy_tises(priv);
return err;
}
static void mlx5e_cleanup_uplink_rep_tx(struct mlx5e_rep_priv *rpriv)
{
mlx5e_rep_tc_netdevice_event_unregister(rpriv);
mlx5e_rep_bond_cleanup(rpriv);
mlx5e_rep_tc_cleanup(rpriv);
}
static void mlx5e_cleanup_rep_tx(struct mlx5e_priv *priv)
{
struct mlx5e_rep_priv *rpriv = priv->ppriv;
mlx5e_destroy_tises(priv);
if (rpriv->rep->vport == MLX5_VPORT_UPLINK)
mlx5e_cleanup_uplink_rep_tx(rpriv);
}
static void mlx5e_rep_enable(struct mlx5e_priv *priv)
{
mlx5e_set_netdev_mtu_boundaries(priv);
}
static int mlx5e_update_rep_rx(struct mlx5e_priv *priv)
{
return 0;
}
static int uplink_rep_async_event(struct notifier_block *nb, unsigned long event, void *data)
{
struct mlx5e_priv *priv = container_of(nb, struct mlx5e_priv, events_nb);
if (event == MLX5_EVENT_TYPE_PORT_CHANGE) {
struct mlx5_eqe *eqe = data;
switch (eqe->sub_type) {
case MLX5_PORT_CHANGE_SUBTYPE_DOWN:
case MLX5_PORT_CHANGE_SUBTYPE_ACTIVE:
queue_work(priv->wq, &priv->update_carrier_work);
break;
default:
return NOTIFY_DONE;
}
return NOTIFY_OK;
}
if (event == MLX5_DEV_EVENT_PORT_AFFINITY)
return mlx5e_rep_tc_event_port_affinity(priv);
return NOTIFY_DONE;
}
static void mlx5e_uplink_rep_enable(struct mlx5e_priv *priv)
{
struct net_device *netdev = priv->netdev;
struct mlx5_core_dev *mdev = priv->mdev;
u16 max_mtu;
netdev->min_mtu = ETH_MIN_MTU;
mlx5_query_port_max_mtu(priv->mdev, &max_mtu, 1);
netdev->max_mtu = MLX5E_HW2SW_MTU(&priv->channels.params, max_mtu);
mlx5e_set_dev_port_mtu(priv);
mlx5e_rep_tc_enable(priv);
mlx5_modify_vport_admin_state(mdev, MLX5_VPORT_STATE_OP_MOD_UPLINK,
0, 0, MLX5_VPORT_ADMIN_STATE_AUTO);
mlx5_lag_add(mdev, netdev);
priv->events_nb.notifier_call = uplink_rep_async_event;
mlx5_notifier_register(mdev, &priv->events_nb);
mlx5e_dcbnl_initialize(priv);
mlx5e_dcbnl_init_app(priv);
}
static void mlx5e_uplink_rep_disable(struct mlx5e_priv *priv)
{
struct mlx5_core_dev *mdev = priv->mdev;
mlx5e_dcbnl_delete_app(priv);
mlx5_notifier_unregister(mdev, &priv->events_nb);
mlx5e_rep_tc_disable(priv);
mlx5_lag_remove(mdev);
}
static MLX5E_DEFINE_STATS_GRP(sw_rep, 0);
static MLX5E_DEFINE_STATS_GRP(vport_rep, MLX5E_NDO_UPDATE_STATS);
/* The stats groups order is opposite to the update_stats() order calls */
static mlx5e_stats_grp_t mlx5e_rep_stats_grps[] = {
&MLX5E_STATS_GRP(sw_rep),
&MLX5E_STATS_GRP(vport_rep),
};
static unsigned int mlx5e_rep_stats_grps_num(struct mlx5e_priv *priv)
{
return ARRAY_SIZE(mlx5e_rep_stats_grps);
}
/* The stats groups order is opposite to the update_stats() order calls */
static mlx5e_stats_grp_t mlx5e_ul_rep_stats_grps[] = {
&MLX5E_STATS_GRP(sw),
&MLX5E_STATS_GRP(qcnt),
&MLX5E_STATS_GRP(vnic_env),
&MLX5E_STATS_GRP(vport),
&MLX5E_STATS_GRP(802_3),
&MLX5E_STATS_GRP(2863),
&MLX5E_STATS_GRP(2819),
&MLX5E_STATS_GRP(phy),
&MLX5E_STATS_GRP(eth_ext),
&MLX5E_STATS_GRP(pcie),
&MLX5E_STATS_GRP(per_prio),
&MLX5E_STATS_GRP(pme),
&MLX5E_STATS_GRP(channels),
&MLX5E_STATS_GRP(per_port_buff_congest),
};
static unsigned int mlx5e_ul_rep_stats_grps_num(struct mlx5e_priv *priv)
{
return ARRAY_SIZE(mlx5e_ul_rep_stats_grps);
}
static const struct mlx5e_profile mlx5e_rep_profile = {
.init = mlx5e_init_rep,
.cleanup = mlx5e_cleanup_rep,
.init_rx = mlx5e_init_rep_rx,
.cleanup_rx = mlx5e_cleanup_rep_rx,
.init_tx = mlx5e_init_rep_tx,
.cleanup_tx = mlx5e_cleanup_rep_tx,
.enable = mlx5e_rep_enable,
.update_rx = mlx5e_update_rep_rx,
.update_stats = mlx5e_stats_update_ndo_stats,
.rx_handlers = &mlx5e_rx_handlers_rep,
.max_tc = 1,
.rq_groups = MLX5E_NUM_RQ_GROUPS(REGULAR),
.stats_grps = mlx5e_rep_stats_grps,
.stats_grps_num = mlx5e_rep_stats_grps_num,
};
static const struct mlx5e_profile mlx5e_uplink_rep_profile = {
.init = mlx5e_init_rep,
.cleanup = mlx5e_cleanup_rep,
.init_rx = mlx5e_init_ul_rep_rx,
.cleanup_rx = mlx5e_cleanup_ul_rep_rx,
.init_tx = mlx5e_init_rep_tx,
.cleanup_tx = mlx5e_cleanup_rep_tx,
.enable = mlx5e_uplink_rep_enable,
.disable = mlx5e_uplink_rep_disable,
.update_rx = mlx5e_update_rep_rx,
.update_stats = mlx5e_stats_update_ndo_stats,
.update_carrier = mlx5e_update_carrier,
.rx_handlers = &mlx5e_rx_handlers_rep,
.max_tc = MLX5E_MAX_NUM_TC,
.rq_groups = MLX5E_NUM_RQ_GROUPS(REGULAR),
.stats_grps = mlx5e_ul_rep_stats_grps,
.stats_grps_num = mlx5e_ul_rep_stats_grps_num,
};
/* e-Switch vport representors */
static int
mlx5e_vport_rep_load(struct mlx5_core_dev *dev, struct mlx5_eswitch_rep *rep)
{
const struct mlx5e_profile *profile;
struct mlx5e_rep_priv *rpriv;
struct devlink_port *dl_port;
struct net_device *netdev;
int nch, err;
rpriv = kzalloc(sizeof(*rpriv), GFP_KERNEL);
if (!rpriv)
return -ENOMEM;
/* rpriv->rep to be looked up when profile->init() is called */
rpriv->rep = rep;
nch = mlx5e_get_max_num_channels(dev);
profile = (rep->vport == MLX5_VPORT_UPLINK) ?
&mlx5e_uplink_rep_profile : &mlx5e_rep_profile;
netdev = mlx5e_create_netdev(dev, profile, nch, rpriv);
if (!netdev) {
mlx5_core_warn(dev,
"Failed to create representor netdev for vport %d\n",
rep->vport);
kfree(rpriv);
return -EINVAL;
}
dev_net_set(netdev, mlx5_core_net(dev));
rpriv->netdev = netdev;
rep->rep_data[REP_ETH].priv = rpriv;
INIT_LIST_HEAD(&rpriv->vport_sqs_list);
if (rep->vport == MLX5_VPORT_UPLINK) {
err = mlx5e_create_mdev_resources(dev);
if (err)
goto err_destroy_netdev;
}
err = mlx5e_attach_netdev(netdev_priv(netdev));
if (err) {
netdev_warn(netdev,
"Failed to attach representor netdev for vport %d\n",
rep->vport);
goto err_destroy_mdev_resources;
}
err = mlx5e_rep_neigh_init(rpriv);
if (err) {
netdev_warn(netdev,
"Failed to initialized neighbours handling for vport %d\n",
rep->vport);
goto err_detach_netdev;
}
err = register_netdev(netdev);
if (err) {
netdev_warn(netdev,
"Failed to register representor netdev for vport %d\n",
rep->vport);
goto err_neigh_cleanup;
}
dl_port = mlx5_esw_offloads_devlink_port(dev->priv.eswitch, rpriv->rep->vport);
if (dl_port)
devlink_port_type_eth_set(dl_port, netdev);
return 0;
err_neigh_cleanup:
mlx5e_rep_neigh_cleanup(rpriv);
err_detach_netdev:
mlx5e_detach_netdev(netdev_priv(netdev));
err_destroy_mdev_resources:
if (rep->vport == MLX5_VPORT_UPLINK)
mlx5e_destroy_mdev_resources(dev);
err_destroy_netdev:
mlx5e_destroy_netdev(netdev_priv(netdev));
kfree(rpriv);
return err;
}
static void
mlx5e_vport_rep_unload(struct mlx5_eswitch_rep *rep)
{
struct mlx5e_rep_priv *rpriv = mlx5e_rep_to_rep_priv(rep);
struct net_device *netdev = rpriv->netdev;
struct mlx5e_priv *priv = netdev_priv(netdev);
struct mlx5_core_dev *dev = priv->mdev;
struct devlink_port *dl_port;
void *ppriv = priv->ppriv;
dl_port = mlx5_esw_offloads_devlink_port(dev->priv.eswitch, rpriv->rep->vport);
if (dl_port)
devlink_port_type_clear(dl_port);
unregister_netdev(netdev);
mlx5e_rep_neigh_cleanup(rpriv);
mlx5e_detach_netdev(priv);
if (rep->vport == MLX5_VPORT_UPLINK)
mlx5e_destroy_mdev_resources(priv->mdev);
mlx5e_destroy_netdev(priv);
kfree(ppriv); /* mlx5e_rep_priv */
}
static void *mlx5e_vport_rep_get_proto_dev(struct mlx5_eswitch_rep *rep)
{
struct mlx5e_rep_priv *rpriv;
rpriv = mlx5e_rep_to_rep_priv(rep);
return rpriv->netdev;
}
static const struct mlx5_eswitch_rep_ops rep_ops = {
.load = mlx5e_vport_rep_load,
.unload = mlx5e_vport_rep_unload,
.get_proto_dev = mlx5e_vport_rep_get_proto_dev
};
void mlx5e_rep_register_vport_reps(struct mlx5_core_dev *mdev)
{
struct mlx5_eswitch *esw = mdev->priv.eswitch;
mlx5_eswitch_register_vport_reps(esw, &rep_ops, REP_ETH);
}
void mlx5e_rep_unregister_vport_reps(struct mlx5_core_dev *mdev)
{
struct mlx5_eswitch *esw = mdev->priv.eswitch;
mlx5_eswitch_unregister_vport_reps(esw, REP_ETH);
}